“Had this TV a few weeks, sometimes while using a game system like the XBOX One or Nintendo switch, the TV will spontaneously switch inputs to our Verizon Fios cable box. The cable box doesn't even have to be on for this to happen. How do we stop this?”
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Hi njch! Samsung TV's have Anynet+ (also known as HDMI-CEC), a feature that allows connected external HDMI devices to inform your TV when they have turned on. By default, the TV will immediately switch to this source when this happens. To turn off this function of a device connected to the TV, turn off the Anynet+ (HDMI-CEC) function of the device. Also, please make sure that your TV’s firmware is up to date. ^Tim
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